1 files changed, 41 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pr21792.ll b/test/CodeGen/X86/pr21792.ll
new file mode 100644
index 0000000..4138afc
--- /dev/null
+++ b/test/CodeGen/X86/pr21792.ll
@@ -0,0 +1,41 @@
+; RUN: llc -mtriple=x86_64-linux -mcpu=corei7 < %s | FileCheck %s
+; This fixes a missing cases in the MI scheduler's constrainLocalCopy exposed by
+; PR21792
+
+@stuff = external constant [256 x double], align 16
+
+define void @func(<4 x float> %vx) {
+entry:
+  %tmp2 = bitcast <4 x float> %vx to <2 x i64>
+  %and.i = and <2 x i64> %tmp2, <i64 8727373547504, i64 8727373547504>
+  %tmp3 = bitcast <2 x i64> %and.i to <4 x i32>
+  %index.sroa.0.0.vec.extract = extractelement <4 x i32> %tmp3, i32 0
+  %idx.ext = sext i32 %index.sroa.0.0.vec.extract to i64
+  %add.ptr = getelementptr inbounds i8* bitcast ([256 x double]* @stuff to i8*), i64 %idx.ext
+  %tmp4 = bitcast i8* %add.ptr to double*
+  %index.sroa.0.4.vec.extract = extractelement <4 x i32> %tmp3, i32 1
+  %idx.ext5 = sext i32 %index.sroa.0.4.vec.extract to i64
+  %add.ptr6 = getelementptr inbounds i8* bitcast ([256 x double]* @stuff to i8*), i64 %idx.ext5
+  %tmp5 = bitcast i8* %add.ptr6 to double*
+  %index.sroa.0.8.vec.extract = extractelement <4 x i32> %tmp3, i32 2
+  %idx.ext14 = sext i32 %index.sroa.0.8.vec.extract to i64
+  %add.ptr15 = getelementptr inbounds i8* bitcast ([256 x double]* @stuff to i8*), i64 %idx.ext14
+  %tmp6 = bitcast i8* %add.ptr15 to double*
+  %index.sroa.0.12.vec.extract = extractelement <4 x i32> %tmp3, i32 3
+  %idx.ext19 = sext i32 %index.sroa.0.12.vec.extract to i64
+  %add.ptr20 = getelementptr inbounds i8* bitcast ([256 x double]* @stuff to i8*), i64 %idx.ext19
+  %tmp7 = bitcast i8* %add.ptr20 to double*
+  %add.ptr46 = getelementptr inbounds i8* bitcast (double* getelementptr inbounds ([256 x double]* @stuff, i64 0, i64 1) to i8*), i64 %idx.ext
+  %tmp16 = bitcast i8* %add.ptr46 to double*
+  %add.ptr51 = getelementptr inbounds i8* bitcast (double* getelementptr inbounds ([256 x double]* @stuff, i64 0, i64 1) to i8*), i64 %idx.ext5
+  %tmp17 = bitcast i8* %add.ptr51 to double*
+  call void @toto(double* %tmp4, double* %tmp5, double* %tmp6, double* %tmp7, double* %tmp16, double* %tmp17)
+  ret void
+; CHECK-LABEL: func:
+; CHECK: pextrq  $1, %xmm0,
+; CHECK-NEXT: movd    %xmm0, %r[[AX:..]]
+; CHECK-NEXT: movslq  %e[[AX]],
+; CHECK-NEXT: sarq    $32, %r[[AX]]
+}
+
+declare void @toto(double*, double*, double*, double*, double*, double*)